Option Boards - NEC EXPRESS5800/140Hb Service Manual

Option Boards

The following sections describe how to install and remove Hot-Plug PCI option
boards. The Hot-Plug PCI feature is useable only when Operating System
support is available. The system board has six dedicated 64-bit PCI bus
expansion slots and two dedicated 32-bit PCI expansion slots (see Figure 4-21).
The high-performance PCI local bus allows the adoption of newer networking
technology, such as 100 Mega-bit/second Ethernet NICs, with a minimum of
effort and without concern for I/O bottlenecks. The PCI local bus offers up to
528 Mega-byte/second bandwidth.
A
B
C
Note:
top to bottom PCI#1, PCI#2, PCI#3, PCI#4, PCI#5, PCI#6,
PCI#7, and PCI#8.
A* First PCI Board Slots PCI#1 and PCI#2 (32-bit, 33 MHz).
B Second PCI Board Slots PCI #3 and PCI #4 (64-bit, 66 MHz).
C Third PCI Board Slots PCI #5, PCI #6, PCI#7, and PCI#8 (64-bit, 33 MHz).
* Note that PCI#1 and PCI#2 are non-Hot-Plug PCI board slots.
The system board PCI slots are numbered from
Figure 4-21. PCI Slot Locations
Disassembly and Reassembly 4-27